[Dnsmasq-discuss] No more random source port

Risto Suominen risto.suominen at gmail.com
Mon Mar 20 21:01:36 GMT 2017


Hi Albert,

Thanks for your help so far.

2017-03-20 22:18 UTC+02.00, Albert ARIBAUD <albert.aribaud at free.fr>:
>
> So, back to the basics: let's start with a capture of DNS traffic. Can
> you run wireshark or tcpdump on your Lubuntu and capture a few requests
> for resolution?
>
Attached a small pcap. What I did:
1) 'host google.com'
2) 'host google.fi'
3) 'host google.com 192.168.1.1'
4) 'host google.fi 192.168.1.1'

1) and 2) go through dnsmasq, and use same source port.

In this case I get an answer: this is a different router, a Zyxel.
I'll try to make this same test against TP-Link..

Risto
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